00910nam a22001097a 4500008004100000100001800041245004500059260003800104300003000142520059100172773003700763210712b           ||||| |||| 00| 0 eng d  aWauters, Bart  aAquinas, ius gentium, and the decretists  aJournal of The History of Ideas    a81(4), Oct, 2020: 509-529  aFor his conception of the ius gentium, Aquinas took as his starting point the canon law doctrines of Gratian, who himself had adopted ideas from Isidore of Seville. Aquinas’s conception of the ius gentium was different of Gratian’s and relied to a large extent on the civilian interpretation of Romanlaw texts. This article analyzes how the decretists, the first interpreters of Gratian, arrived at a conception of the ius gentium that was different from that of Gratian himself, and thus paved the way for Aquinas to read the Roman law conception into the ius gentium.- Reproduced   aJournal of the History of Ideas